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3 years ago

Which feature would you find on an echinoderm

2 answers:

6 0

What you're looking for is BILATERAL SYMMETRY, meaning if the organism were cut in half down the middle, there would be two perfect sides. BI = 2, LATERAL = sides SYMMETRY. the other answer is wrong, the explanation is right but the term is wrong

konstantin123 [22]3 years ago

4 0

Answer:

Radial symmetry

Explanation:

One of the most prominent features of echinoderms is their radial symmetry. This means that if we divide the organism around any main axis it should be divided in two exactly similar halves across any plane passing through the body. This is because the mouth is surrounded by a central disk that contain specific structures called podia that radiate outwards and gives the radial symmetry to organism.

For example: The body of ctenophores, echinoderm, sea-anemone and many sponges have radial symmetry. Some echinoderms that have radial symmetry include sea urchin, Sea cucumber, bitter star etc.

Hope it helps!

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The diagram below shows a food web in a woodland.

Vedmedyk [2.9K]

Answer:

The correct option is A. X, because organism X has the same role as the grasshopper

Explanation:

In a food chain or a food web, a primary producer can be described as an organism which feeds on producers. The producers, in this case, are the corn stalks. Grasshoppers are primary consumers in this food web because they feed on the corn stalks. X is also a primary producer, just like grasshopper, because it feeds on the corn stalks which are the producers. Hence, option A is correct.

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4 years ago

In beetles, the gene for color and the gene for pattern are located on the same chromosome and exhibit recombination. The lined

Pie

Explanation:

The genes that determine color and pattern are linked.

Solid pattern allele (L) is dominant over lined pattern (l)
Blue color allele (B) is dominant over aqua color (b)

<h3>Initial cross</h3>

Homozygous lined aqua beetle has the genotype lb/lb

It can produce only 1 type of gamete: lb

Homozygous solid blue beetle has the genotype LB/LB

It can produce only 1 type of gamete: LB

The F1 is formed by the union of the parents' gametes, so it will have the genotype lb/LB

<h3>F1 test cross</h3>

Test crosses involve a homozygous recessive individual.

The homozygous recessive individual lb/lb can only produce 1 type of gamete:

lb

The F1 individual lb/LB can produce 4 types of gametes:

lb - parental
LB - parental
lB - recombinant
Lb - recombinant

8 0

4 years ago

In C3 plants the conservation of water promotes _____. In C3 plants the conservation of water promotes _____. photorespiration a

julia-pushkina [17]

Answer:

The correct answer is "photorespiration".

Explanation:

Photorespiration is a process in plants, where molecular oxygen is taken in a light-dependent manner. Photorespiration is often considered a wasteful pathway because it competes with the Calvin cycle, which is much more efficient. In C3 plants the conservation of water promotes photorespiration. This occurs when the C3 plants close its stomata because the environment its too hot, or the carbon dioxide concentration drops to about 50 ppm.

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3 years ago

Some large arteries that are proximal to the heart are sensitive to the stretch of the blood vessels. This stretch indicates the

Anna35 [415]

Answer:

Explanation:

Mechanoreceptors detect changes in pressure while interoceptors detect internal change.

8 0

3 years ago

PLEASE HELP ILL GET KICKED OFF THE TEAM IF I FAIL!!!!!!!Use the scenano to answer the question.

VLD [36.1K]

Answer:

Amount of water

Explanation:

7 0

3 years ago